In Minecraft, armor trims refer to the decorative edges that appear on the edges of armor piece.
These trims can be made of various materials such as gold, iron, and diamond. Armor trims are purely cosmetic and do not affect the armor's protection or durability.
To add trims to armor, you can use a grindstone, which can be used to add or remove trims from armor pieces.
If you put the armor piece and the material you want to use as a trim in the grindstone, it will add the trim to the armor.
You can also use a cauldron filled with water to remove trims from armor.
Armor trims come in 11 different patterns that you can dye in 10 different colors.
You can craft your trims on a smithing table and then dye them with gems and ingots such as diamonds, copper, and netherite!